10 ppm nitrates is perfectly exceptable, hard to keep it at 0 , as for the 55, you have nitrite typed twice but same goes for nitrates , ammonia of .25 isnt bad but should be zero, what is the stocking in this tank? If your really concerned try more water changes but really 10ppm is fine

overstocking will cause ammonia, What do you have in there? being a bit overstocked can be ok if you do enough water changes and have extra filtration just my opinion though and others will say get rid of some fish.

Thanks so much, I'm taking notes and taking advice. I'll figure which other ones to fish out other then the ones mentioned

I thought the Brown African Knife stayed at a 4 to 6 inch length and the pleco is a small one, it was called a "clown" pleco. If that is correct, I don't know, but it's about 2" for over two years now. Maybe I should let those two go also. Hmmmmmm. I'll think it out and post a thread.. Y'all have been super help!